内容正文:
课题
U5 Section A(4a-4d)
Grammar Focus
课型
新授课
(语法)
课时
4
学习
重点难点
重点:掌握过去进行时与when/while引导时间状语从句的功能与用法;熟练运用was/were doing when/while...结构(含语境差异)完成语句和语篇填空;能在灾害经历交流中融入目标语法,准确表达动作同时性与先后性。
难点:灵活区分when(动作先后)与while(动作同时)的语境差异;在语篇中自然运用过去进行时,实现语法与意义的融合;将目标语法结构迁移到自身防灾经历分享中,使表达既符合语法规则又贴合真实情境。
学习
目标
1. 能够在“自然灾害经历”语境中,识别过去进行时在when/while从句中的功能,明确不同结构的语法特征;清晰阐释when/while在灾害场景中的表意作用;(学习理解)
2. 能够依据语法规则,正确完成when/while合并句子、语篇补全的练习;模仿创编“灾害经历交流”对话,合理融入目标语法,实现信息问答与意义表达;(应用实践)
3. 能够结合自身生活,灵活运用过去进行时与when/while分享独特的防灾经历(含活动、应对与感受),使语篇连贯、表意生动;关联“敬畏自然、科学避险”的单元主题,用目标语法丰富表达,凸显防灾准备的价值。(迁移创新)
当堂评价
1. 能够快速指出when/while引导从句的语境差异,准确说明was/were doing when/while...结构的用法;正确分析“We were having dinner when she called”等句子的语法特征;(检测学习目标1)
2. 能够独立完成练习,when/while与过去进行时运用正确,语句通顺贴合“自然灾害”语境;两人一组,模仿主题创编至少3轮对话,语法运用准确,交流自然流畅;(检测学习目标2)
3. 能够在自身防灾经历分享中,正确使用目标语法,情节合理、表达流畅;能关联“敬畏自然、科学避险”主题,用when/while结构清晰表达应对过程与价值,体现语法知识的迁移运用。(检测学习目标3)
教学活动设计
学习活动
教师导学
学习评价
Step 1. Lead-in.
Observe the pictures of tornado signs (wall cloud, greenish sky, frequent lightning, funnel cloud, large hail, swirling debris) and watch the video.
Discuss in pairs what they can do when they see these signs.
Present the pictures of tornado signs and explain the meaning of each sign.
Guide Ss to think about the corresponding preventive actions when these signs appear and share their ideas.
师评。观察学生能否准确识别图片中龙卷风的迹象(如墙云、绿天空、频繁闪电、漏斗云、大冰雹、旋转碎片),并清晰解释每个迹象的含义;能否结合所学生词,用自己的话描述看到这些迹象时应该采取的防范措施。
【设计意图】通过展示龙卷风迹象的图片并讲解含义,为学生提供直观的自然灾害知识素材,帮助学生建立对龙卷风特征的认知,为后续学习中理解台风、龙卷风等灾害的防范和相关语言表达奠定基础。引导学生观察图片并结合生活常识思考防范措施,将知识学习与实际应用相联系,拓展学生对自然灾害应对知识的储备。
Step 2. Presentation.
Study the rules of the past progressive tense (formation, meaning, basic usage: actions in progress at a past time or over a past period).
Analyze the examples and fill in the blanks in the given exercises.
Read the sentences and distinguish the usage of present continuous tense, simple past tense, and past progressive tense.
Fill in the blanks with “when” or “while” according to the time relationship between the main clause and the subordinate clause.
Combine sentences using “when” or “while” according to the given examples.
Complete the passage with “was”, “were”, “when”, or “while”.
Present the knowledge about the past progressive tense, including its meaning, structure, and basic usage.
Provide exercises and guide Ss to complete them, checking their answers and explaining the key points.
Explain the differences between present continuous tense (action in progress now), simple past tense (action finished in the past), and past progressive tense (action in progress at a past time or over a past period).
Guide students to analyze the time relationship in the sentences and choose the correct words or tenses.
Ask Ss to finish activity 4b & 4c. Then check the answers.
师评。观察学生能否准确说出过去进行时的含义、结构和基本用法,如是否清晰理解“过去某一时刻或某一段时间正在进行或发生的动作”这一含义,能否正确复述“was/were +动词-ing”的结构,以及区分其在“过去某一段时间内一直进行的动作”和“过去某一时刻正在进行或发生的动作”这两种基本用法。
【设计意图】呈现过去进行时的核心知识(含义、结构、基本用法),帮助学生系统构建语法知识体系,明确该时态与其他时态(现在进行时、一般过去时)的区别,解决“何时用过去进行时”的认知困惑。通过丰富的例句分析、填空练习、语篇填空等活动,让学生在应用中巩固过去进行时的结构、用法及时态辨析知识,强化语法规则的记忆和内化。以清晰的知识呈现和多样的练习形式激发学生对英语语法的学习兴趣,让学生体会语法学习对提升语言准确性和丰富性的作用,增强学习成就感。
Step 3. Production.
Work in groups. Act as a reporter and interview Jenny's family member about what they were doing around the time of the tornado.
Sa: What were you doing when the tornado hit?
Sb: My family and I were hiding in a safe room.
Sa: What were you doing while you were waiting there?
Sb: Oh, while my father was checking the door, I was looking for our emergency kit.
Set a situation. Organize a role-play activity, providing the scenario and evaluation criteria, and guiding Ss to conduct the interview.
自评、 互评、师评。观察学生能否在小组活动中,熟练运用过去进行时和相关词汇,准确地采访Jenny的家人,还原台风期间的行为场景;能否在角色扮演中,正确使用“when”“while”引导的时间状语从句,清晰表达“过去某一时刻/时间段正在进行的动作”与“另一动作(短暂性或延续性)”的时间关系。
【设计意图】通过“扮演记者采访Jenny的家人”的情境任务,将过去进行时的语法知识、台风相关的词汇和表达方式,融入真实的交流场景中,实现从“知识学习”到“语言运用”的迁移,提升学生的综合语言运用能力。借助“when”“while”的语境化运用,强化学生对时间状语从句的理解,使语法知识服务于真实的交际需求,增强语言的实用性。
Step 4. Conclusion.
Have a conclusion about what they’ve learned this lesson.
Watch the video to learn more about self-protection.
Guide Ss to sum up the grammar they’ve learned.
Play a video about how to prepare for a tornado.
师评。观察学生能否全面、有条理地总结本节课所学的语法知识;观看关于龙卷风自我保护的视频后,能否准确提炼出至3条有效的自我保护措施,并说明这些措施的科学依据。
【设计意图】通过总结环节,帮助学生系统梳理本节课的核心知识(语法、防灾知识),强化记忆与理解,同时将语法知识与实际情境(台风防灾)深度绑定,促进知识的迁移运用,提升学生的综合语言运用能力和防灾知识储备。借助播放龙卷风自我保护的视频,拓展学生的防灾实践知识,弥补课堂理论学习的不足,使学生不仅“知其然”(语法结构),更“知其所以然”(如何用知识保障安全),实现知识从“语言学习”到“生活应用”的延伸。
板
书
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计
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业
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必做
Complete 3 sentences with when/while and past continuous tense about natural disaster experiences.
E.g. I was watching TV when the rain started.
We were staying at home while the wind was blowing.
选做
Write a 60-word note about how your family prepares for natural disasters. Use at least 2 structures with when/while and past continuous tense.
E.g. When the typhoon warning came, we were closing the windows.
While we were packing supplies, my dad checked the radio.
教学反思
【优点】本课时围绕“过去进行时与when/while从句”及“自然灾害应对”主题,设计“感知(4a句子分析)—运用(4b句子合并)—拓展(4c语篇补全、4d角色扮演)”的梯度活动,契合语言学习“输入-内化-输出”规律。语法练习贴合单元“敬畏自然、科学避险”的育人目标,让学生在灾害场景中巩固语法用法,课堂参与度较高。同时,评价聚焦语法功能识别、语句运用等具体任务,标准清晰可测,能快速掌握学生学习情况,助力及时调整教学。
【不足】分层支持欠缺:活动多按平均水平设计,基础薄弱学生对“when/while语境差异”理解缓慢,缺少针对性指导;学优生渴望更复杂的语法融合任务,却无拓展内容,导致参与度两极分化。生活迁移不足:语法练习局限于“自然灾害”单一场景,未关联校园、家庭等日常情境,学生虽掌握课堂语法,却难以迁移到真实生活交流中,语法实用能力培养不足。“防灾避险的意义”讨论较浅:未充分引导学生关联自身生活,削弱了育人目标的落地效果。
【改进】一是强化分层支持,为薄弱学生准备“when/while功能口诀卡”(如“while表同时,when表先后”),安排互助配对;给学优生布置“语法融合任务”(用3种when/while结构描述家庭防灾场景)。二是拓宽迁移场景,增设“生活语法小剧场”,提供“家庭防灾准备、校园应急演练”等场景卡,让学生分组创编对话,拉近语法与生活的距离,提升真实运用能力,同时强化“语法服务生活交流、科学避险”的认知。
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